LIVE: canary re-commission closes R1 precondition 3 by measurement ...

Operator: 'Commission storage-01 as the canary'. maas admin machine
commission kghggm skip_networking=1, sysid matched by pinned boot MAC never
by name. Commissioning -> Ready in ~200s, no timeout, no SERVFAIL.

The full before/after diff of status, power, block devices, interfaces, MACs
and links is EXACTLY ONE HUNK: vdb (536870912000 bytes = 500 GiB) added to
blockdevices. links 12 -> 12; MACs identical; links identical. All twelve
static links survive with addresses, modes and subnets intact, including the
D-134 octet .150 mirrored across all six planes in both families -- the v6
host part ::150 being the 2026-07-27 D-136 mirror ruling visible in live
data.

So skip_networking=1 preserves the network EXACTLY while storage is still
re-scanned, which is the entire point. Precondition 3 was previously answered
from the API help text; it is now answered by measurement. The amendment's
concern was legitimate -- the default path does reconfigure networking -- and
the vendor's own control is sufficient.

Remaining: dc0 storage-02/03/04, then all of dc1.
Capture: docs/audit/dc0-canary-commission-20260729.txt

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf